Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Columbia Graphophone Co Ltd
Original Assignee
Columbia Graphophone Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Columbia Graphophone Co LtdfiledCriticalColumbia Graphophone Co Ltd
Priority to ES92469ApriorityCriticalpatent/ES92469A1/en
Publication of ES92469A1publicationCriticalpatent/ES92469A1/en